Sensitron PL4 +D - Block Diagram System with Pl4 +Dgas Control Unit; Technical Specifications

MT4412E Rev.2 15/10/2019 Pagina 7 di 30
1.1) Block diagram system with PL4 +D gas control unit
LOOP
(6)
Rs485
option: the detectors could be connected
directly on the loop in daisy-chain mode
(1) RILEVATORI GAS ANALOGICI 4-20 mA / 4-20 mA ANALOG GAS DETECTORS
(2) MODULO 8 INGRESSI ANALOGICI ST.G/IN8-S / ANALOG 8 INPUT MODULE
ST.G/IN8-S
(3) CAVO 2 FILI TWISTATI PER Rs485 + 2 FILI PER ALIMENTAZIONE (12-24 Vdc) /
2 TWISTED WIRES FOR THE Rs485 BUS + 2 WIRES FOR THE POWER SUPPLY (12-24 Vdc)
(4) RILEVATORI GAS CON USCITA SERIALE Rs485 / GAS DETECTORS WITH Rs485 OUTPUTS
(5) MODULO 16 USCITE O/C ST.G/OUT16-S / 16 O/C OUTPUTS MODULE ST.G/OUT16-S
(6) MODULO 8 RELE’ ST.G/8REL / 8 RELE’ ST.G/8REL MODULE
(1)
(2)
(3)
(4)
(5)
Pl4 +D
(1)
Fig. 1.1) System block outline
1.2) Technical specifications
Technical specifications
Housing:
IP65 plastic box, 9 DIN module
Inputs:
Max. 12 detectors
Outputs:
5 relays in the gas control unit
16 O/C or relay outputs via the STG/OUT16-S and STG/8REL
remote cards.
Serial ports:
1 x RS485
1 x USB (PC connection)
Power:
24Vdc
Absorption:
Max 10 VA
Display:
Liquid crystal display (LCD)
Optic indications:
10 LEDS
Working temp.
0/-55°C
Storage temp.
-20 ÷ +60 C°
Working RH:
15-85%
Storage RH:
5-85% (non-condensing)